concentration

Meanings

1. 1
   noun

   the ability to give all your attention to something

   The noise outside made concentration impossible.

2. 2
   noun

   a large amount of something gathered in one place

   There is a high concentration of factories in this area.

3. 3
   noun

   the amount of a substance contained in a liquid or mixture

   The concentration of salt in the water was very high.

From New Latin concentrātiō (“(1550) action or an act of coming together at a single place; (1659) extraction or separation of one or more of the metals present in an alloy”). Compare French concentration, Spanish concentración, Italian concentrazione (last quarter of 16th century). Equivalent to concentrate + -ion. By surface analysis, con- + centre + -ate + -ion.

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